Texas Instruments BQ79606EVM, User Manual, Page: 13 / 35

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BQ79606EVM Quick Start Guide
13 SLOU471E – May 2017 – Revised April 2019
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BQ79606A-Q1 Evaluation Module
4.4 Stacking BQ79606EVMs
The EVMs are connected using 4-position Molex connectors. There is a high side (J6) and low side (J5)
communication connector available on each device. A jumper and a switch must be configured for proper
stack operation (see
Section 4.4.1 and Section 4.4.2 ).
Table 12. Connections Between High-Side/Low-Side BQ79606EVMs
Connection Name BQ79606EVM High Side BQ79606EVM Low Side
COMH_N/COML_N J6 pin 4 J5 pin 1
COMH_P/COML_P J6 pin 3 J5 pin 2
FAULTH_N/FAULTL_N J6 pin 2 J5 pin 3
FAULTH_P/FAULTL_P J6 pin 1 J5 pin 4
4.4.1 Base/Stack Jumper Setup - J13
NOTE: Silkscreen for this jumper may be INCORRECT on some EVMs. Please place the jumper as
defined below.
For base devices, ensure that the jumper is placed on the left side of J13. For stack devices, ensure that
the jumper is placed on the right side of J13.
4.4.2 Base/Stack Switch Setup - SW1
For base devices, ensure that the switch is placed in the "BASE" position (up). For stack devices, ensure
that the switch is placed in the "STACK" position (down).
4.5 Software
The software provides a command API and drivers that are capable of implementing the examples
provided in
BQ79606A-Q1 Software Design Reference .
The example code only provides a control interface to the BQ79606A-Q1 and does not provide any other
communications interface to the outside world. The customer is expected to develop their own
communication implementation. Examples of communications interfaces available to the TMS570 are SPI,
CAN, or UART. For the TMS570 example code, UART is the communication protocol used between the
microcontroller and BQ79606A-Q1 device.
This firmware provided with this application note provides source code examples of the command
sequences described in the
BQ79606A-Q1 Software Design Reference .